[Rare cases of multiple primary malignant tumors].
D000008:Abdominal Neoplasms; D000368:Aged; D004938:Esophageal Neoplasms / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary; D012878:Skin Neoplasms; D013274:Stomach Neoplasms / Q000150:complications
Redkie nabliudeniia pervichnomnozhestvennykh zlokachestvennykh opukholeĭ.